Bought three trousers in different colours in size L from White City store as a gift for a family member. One of them although labelled size L, was too small. So, I checked the inside label, turns out it was an XS, mislabelled as L. Being a gift and having no physical fault at the time of purchase, I did not keep the receipt. Took it back three weeks later to the same store, where the cashier serving me was not trained to resolve the issue and asked the cashier next to her for help. The cashier next to her started interrogating me whilst serving another customer. He was not even paying attention to me explaining the problem and kept snapping ''What do you mean?!, It is not mislabelled, we cannot do anything!'' even though I showed him the inside label which clearly had XS on it. He kept snapping at me and made me repeat myself multiple times until he understood and called a manager and the manager completely ignored my complain about her rue staff and blatantly let the cashier talk over me and snap at me and at the end she refused to offer a resolution and directed me towards customer services. Spend 1h explaining the same issue to customer services over chat and they took all the details. One day later received an email stating, they were unable to locate the receipt. Surely selling a mislabelled product is illegal. It is also illegal to decline resolution for it. Never shopping in Zara White City again.