Bad service

Bought three items on the ZARA app on the 26 of July. Four days later I get an modified email informing me that one of the items is out of stock (mind I’ve already paid for it) no stress. A week later I get my order. Two items instead of three but it’s cool. Later on I start enquiring about my refund since I only received two items instead of the three that I paid for. But I’ve been told to wait for 3-5 working days for the last three week, even today still. I am sick and tired of being sent from pillar to post with the money that is due to me. It’s my money and I want it. ZARA should act as though they’re doing me a favor by returning my money. It’s mine!!! This is also a violation of the TCF rules because now I have to run after them and to make matters worse. There’s not telephone number to call and even if you do send an email they never respond. All they have is that option to just chat and that’s where it ends. I am extremely unhappy with the service I got from them. I am actually thinking of buying elsewhere now.