Bad customer relation

My cell a Huawei P30 Pro has a broken screen. I took it to the repair centre at Canal Walk to be fixed they wanted an upfront payment which I said no as my debit cards were not with me. So they send me an email stating that it will cost R2375.90 to fix.

On receipt of the email dated 7/4/2021, I made the payment the same day. FNB to FNB. I have received two calls from them stating that they have not received the payment and yet all they had to do was to check thier FNB account. Obviuosly they did not and I received another call from them as they say that the money is not in. So I asked again did you check your FNB account, NO, that was the answer. What next HUAWEI people you are supposed to be professional.