Frustrated by Buffalo's unprofessionalism

FRUSTRATED: I ordered clothes from Shein of which was followed by an SMS, email and early morning call on the 19th Jan 2022 from Buffalo that my parcel has been received, I need to customs duty. I followed the link provided by Buffalo in the SMS/email to make a payment. I continued getting calls each and everyday from Buffalo that I should pay, I then sent a Whatsapp message indicating that I've already paid, to this day, my message has not been responded to. I then followed with a call to explain this, I was told on a call that my query has been escalated to the finance department, this was followed by an email from Brian Mate (24 Jan) saying I should expect feedback after 3/4 business days, no feedback as yet instead I'm getting another SMS and call from a recorder that I should pay. When I track my parcel, I am expected to provide proof of payment with an account number, from where as this was not provided in the SMS/email from Buffalo. I really wish my parcel was picked up by a different service provider. If only one could choose their own provider, my calls are not being picked up by Buffalo and my Whatsapp messages are still pending feedback.