Got ****med by Buffalo logistics

I’m very disappointed by the service I received at Buffalo logistics. A few weeks ago I ordered Christmas clothes on Shein for my daughter and I received a customs duty sms saying I must pay R91.70, which I did using my banking app and sent them proof of payment on their WhatsApp number but they did not respond. About two days ago I received an email informing me that my delivery had failed and the parcel would either be destroyed or returned. I have spent the past two days trying to call them and after being kept on hold I finally managed to speak to a consultant on the telephone but was cut off before I could finish lodging the complaint. She did not even bother calling me back, I have lost my money & my daughter won’t be getting her Christmas clothes.