Zando - Extremely poor service

I bought two pairs of shoes on 19 May 2020. On 20 My I received an email stating that the order was shipped and on 23 May an email indicating that I will receive my order soon. On 26 May I sent an email requesting for an exchange, I wasn't aware that they do not do exchanges, and both pairs of shoes were too small. After countless emails sent to them, they informed me that they do not do exchanges. I asked to log a return for the items 2 June 2020 and then the items were only collected from me on 23 June 2020. I tried to contact them numerous times however their customer call centre is closed due to the corona virus pandemic. I still have not received my refund even though the items have been collected two weeks ago, and they don't respond to messages on their social media platforms either. But they do post quite often on their Instagram and Facebook account. I will never buy anything from Zando again nor recommend your online store to anyone I know. Your service is extremely slow, communication is delayed and basic customer service is pathetic.