Very unhappy client

I tried to buy from Zando on the 3rd of April but I was struggling with making payment. I'm not a first time buyer and what happens is: when I buy using my banking app, the details are automatically stored under my beneficiaries. So since I was struggling to make direct payment, I made an eft. Zando cancelled my order saying I didn't make payment. I made them aware of my payment and on the 14th April I got an email saying my refund has been processed but till today the 25 the refund has not reflected in my account. I asked about it but with no response from Zando. I must say I'm very disappointed and as I write this I have another order with them which will be delivered after lockdown. I feel like cancelling it and cutting all ties with Zando.