--- a/tests/src/util/helpers.ts
+++ b/tests/src/util/helpers.ts
@@ -241,11 +241,11 @@
   });
 }
 
-export async function findUnusedAddress(api: ApiPromise): Promise<IKeyringPair> {
+export async function findUnusedAddress(api: ApiPromise, seedAddition = ''): Promise<IKeyringPair> {
   let bal = new BigNumber(0);
   let unused;
   do {
-    const randomSeed = 'seed' +  Math.floor(Math.random() * Math.floor(10000));
+    const randomSeed = 'seed' +  Math.floor(Math.random() * Math.floor(10000)) + seedAddition;
     const keyring = new Keyring({ type: 'sr25519' });
     unused = keyring.addFromUri(`//${randomSeed}`);
     bal = new BigNumber((await api.query.system.account(unused.address)).data.free.toString());
@@ -253,6 +253,10 @@
   return unused;
 }
 
+export function findUnusedAddresses(api: ApiPromise, amount: number): Promise<IKeyringPair[]> {
+  return Promise.all(new Array(amount).fill(null).map(() => findUnusedAddress(api, '_' + Date.now())));
+}
+
 export async function findNotExistingCollection(api: ApiPromise): Promise<number> {
   const totalNumber = parseInt((await api.query.nft.createdCollectionCount()).toString(), 10) as unknown as number;
   const newCollection: number = totalNumber + 1;