Rented a laptop

I have ordered a laptop to rent. Immediately after the purchase I have found a better deal on different websites where I can actually own the laptop. I think it was less than 5 minutes after I have made the order with MusicMagpie I contacted the team via the chat to cancel my order ( because you cannot do it manually which is a first red flag for me). I had no response from anybody so I kept writing emails up to three times a day. Now the order has been dispatched meaning that if I wanted to cancel it now, I have to pay a fee. Personally, what I think it’s happening is that they intentionally didn’t respond in order to get that extra money because they knew I had the intention to cancel the order. You could argue that because of the Jubilee holidays nobody was available to take care of this yet they clearly had staff on which have dispatched the order ( to be precise it was dispatched on June 2,2022). In my opinion the customer service is terrible and I will not purchase from them anything ever again.