diff --git a/background/services/block/db.ts b/background/services/block/db.ts
index 058979b4..88f2077c 100644
--- a/background/services/block/db.ts
+++ b/background/services/block/db.ts
@@ -2,7 +2,6 @@ import Dexie, { DexieOptions } from "dexie"
 
 import { AnyEVMBlock } from "../../networks"
 import { NetworkInterface } from "../../constants/networks/networkTypes"
-import { ChainDatabase } from "../chain/db"
 
 export class BlockDatabase extends Dexie {
   private blocks!: Dexie.Table<AnyEVMBlock, [string, string]>
diff --git a/background/services/block/index.ts b/background/services/block/index.ts
index 7abe8eae..a2aaa185 100644
--- a/background/services/block/index.ts
+++ b/background/services/block/index.ts
@@ -1,4 +1,4 @@
-import { getZoneForAddress, JsonRpcProvider, Shard, Zone } from "quais"
+import { JsonRpcProvider, Shard, toZone } from "quais"
 import { NetworkInterface } from "../../constants/networks/networkTypes"
 import logger from "../../lib/logger"
 import { AnyEVMBlock, BlockPrices, toHexChainID } from "../../networks"
@@ -144,9 +144,9 @@ export default class BlockService extends BaseService<Events> {
   async getBlockPrices(
     network: NetworkInterface,
     provider: JsonRpcProvider,
-    shard: Shard,
-    zone: Zone
+    shard: Shard
   ): Promise<BlockPrices> {
+    const zone = toZone(shard)
     const [currentBlock, feeData] = await Promise.all([
       provider.getBlock(shard, "latest"),
       provider.getFeeData(zone),
@@ -232,16 +232,15 @@ export default class BlockService extends BaseService<Events> {
 
     const { address } = await this.preferenceService.getSelectedAccount()
     const shard = getExtendedZoneForAddress(address, false) as Shard
-    const zone = getZoneForAddress(address)
-    if (!zone) {
-      logger.warn(`Can't get zone for ${address}`)
+
+    if (!shard) {
+      logger.warn(`Can't get shard for ${address}`)
       return
     }
     const blockPrices = await this.getBlockPrices(
       subscription.network,
       subscription.provider,
-      shard,
-      zone
+      shard
     )
     await this.emitter.emit("blockPrices", {
       blockPrices,
diff --git a/background/services/chain/index.ts b/background/services/chain/index.ts
index 2854df40..6c2144ae 100644
--- a/background/services/chain/index.ts
+++ b/background/services/chain/index.ts
@@ -790,7 +790,7 @@ export default class ChainService extends BaseService<Events> {
   }: AddressOnNetwork): Promise<void> {
     const addressWasInactive = this.addressIsInactive(address)
     const networkWasInactive = this.networkIsInactive(network.chainID)
-    this.markNetworkActivity(network.chainID)
+    this.lastUserActivityOnNetwork[network.chainID] = Date.now()
     this.lastUserActivityOnAddress[address] = Date.now()
     if (addressWasInactive || networkWasInactive) {
       // Reactivating a potentially deactivated address
@@ -799,15 +799,6 @@ export default class ChainService extends BaseService<Events> {
     }
   }
 
-  async markNetworkActivity(chainID: string): Promise<void> {
-    const networkWasInactive = this.networkIsInactive(chainID)
-    this.lastUserActivityOnNetwork[chainID] = Date.now()
-    if (networkWasInactive) {
-      // TODO
-      // await this.blockService.pollBlockPricesForNetwork(chainID)
-    }
-  }
-
   addressIsInactive(address: string): boolean {
     return (
       Date.now() - NETWORK_POLLING_TIMEOUT >
diff --git a/background/services/chain/tests/index.unit.test.ts b/background/services/chain/tests/index.unit.test.ts
index 996563ca..99c0b0f9 100644
--- a/background/services/chain/tests/index.unit.test.ts
+++ b/background/services/chain/tests/index.unit.test.ts
@@ -86,8 +86,6 @@ describe("Chain Service", () => {
 
       jest.advanceTimersByTime(100)
 
-      chainService.markNetworkActivity(QuaiGoldenAgeTestnet.chainID)
-
       expect(lastUserActivity).toBeLessThan(
         (chainService as unknown as ChainServiceExternalized)
           .lastUserActivityOnNetwork[QuaiGoldenAgeTestnet.chainID]
@@ -123,18 +121,6 @@ describe("Chain Service", () => {
       await chainService.stopService()
     })
 
-    it("should call markNetworkActivity with the correct network", async () => {
-      const stub = sandbox
-        .stub(chainService, "markNetworkActivity")
-        .callsFake(async () => {})
-
-      chainService.markAccountActivity(
-        createAddressOnNetwork({ network: QuaiGoldenAgeTestnet })
-      )
-
-      expect(stub.calledWith(QuaiGoldenAgeTestnet.chainID)).toEqual(true)
-    })
-
     it("should call loadRecentAssetTransfers if the NETWORK_POLLING_TIMEOUT has been exceeded", async () => {
       const account = createAddressOnNetwork({ network: QuaiGoldenAgeTestnet })