Lies and disgusting after sale service

Highly disgusted by the lies from your call center. I bought a pair of Pyjamas from your online store. I received parcel and i called immediately upon opening the parcel. I had received an XL bottom and a medium sized top while I had ordered XL pjs. I spoke to Zintle who promised me a courier company will contact me within 5-7 working days. I asked for a ref number from Zinlte and she told me you don"t give out ref numbers. Its almost a month now and the most frustrating thing you are not answering the phones i hold on for 30 minutes at a time. Order Number *** Item number ***