[Resolved]  Dotzot — wrong information send

I bought a saree from khatri creations. Without my concern they shipped another item through dotzot. I requested to exchange and they agreed. The item was picked up by dotzot and they gave me a receipt. Although after pickup they msgd me that "your khatri creations return order could not be collected. Reason customer requested another date"
How they send me wrong information. I already have their msgs and pickup receipt copy.