Meililogistics/Speedaf VAT customs **** invoices

I ordered and paid two orders. Each order included five micro SD cards of different sizes. I received a customs invoice equivalent to about 15% and paid Speedaf and Meililogistics. Only one of the 10 cards arrived. now they send me more unspecified customs and VAT invoices for one after the other for different amounts far bigger than the price paid for the goods. also the one card I received cannot be formatted. Why they break the orders up in different items seems like a big **** as well as the unvetted invoices that does not comply to SARS standards. This is just a huge ****