FASTWAY COURIES UNACCEPTABLE CUSTOMER SERVICE

I Have place an order on Temu My order arrived and I received notification to pay VAT's & rates etc TEMU website states there is a 28 day grace period I have not paid it yet as I was still in the grace period and was awaiting money.., Meantime I received a email from Fastway Couriers that my package was Delivered and signed for however I never paid the VATs and duties? I enquired and was told there was a mix up and thet my order was sent back to Temu due to non-payment of VAT's and duties, I explained to FASTWAY that I am still ion the grace period of 28 Days as per Temu website... Then I was informed that the lady(Rafeeqa) confirmed with her manager that the grace period changed from 21 to 28 days from this month(march) and that I placed the order in Feb which was still on 21 days... Never was I aware that it is 21 days and did they notify me customer of this change in SOP? Now my order that I paid for will be sent back to TEMU... Tis is totally unacceptable to me * I have placed orders on TEMU before without any issues