If you have visited the retailer or store before visiting the Online Offers 2day site and clicking through Online Offers 2day site to store again, then there is a chance that the commission will track elsewhere. This is why Online Offers 2day recommend that you clear all cookies from your browser before clicking through to a retailer and completing a purchase.
Of course you must ensure that your browser is set up to accept cookies! Most transactions use these little monsters which track your every move to ensure you get your cash back.
Be careful if you are using online vouchers or deal codes. If you want cashback you should only use codes taken from the Online Offers 2day site you are using. If you get them from elsewhere you might not get your cash.
If it's an offer or a sign up, you are normally only entitled to receive cashback once. If you've used an offer before you won't get cashback a second time. Some offers and sites run by the same advertiser and this might be why you don't get any cash back.
Adding products to the cart before transferring from Online Offers 2day to online store will lose to earn cashback. Products should be added only after transferring from Online Offers 2day to online store.