Buffalo's unforgivably poor service supporting Shein's will hurt Shein's business!!!

Whilst Shein has quality products, exceptional prices and is an overall great brand, Buffalo Logistics lets them down terribly. I received my parcel and need to return 5 items. I logged the return of my items on Shein and was informed that as Buffalo no longer collects I needed to drop off the return parcel with Pep. I willingly did so, however, Pep did not get the new memo and did not want to take my return to their collections department. I have mailed Buffalo Logistics for over a month now asking for assistance as I needed these clothes credited, I have received automated responses, I have tried their different channels of communication to no avail. I recently made contact with an agent Nomthetho Mahlangu who with all the skills in the world told me she needed a number which I have mailed to her. I have still not received a response and at this time have lost the credit that I would have received from Shein as my items have still not been returned. I have clothes worth R2000 which I cannot wear, will not be credited by Shein, and are now sitting in a box. This makes me second guess ordering from Shein as their delivery partner is so unprofessional and unreliable. A simple query since the beginning of February to date cannot be resolved. This is beyond ridiculous