YODEL blamed me for my own parcel going missing

Yodel have told me that it is my fault my parcel is missing, my query is resolved, the driver is adamant he delivered it and that it’s up to me, the seller and the whole world and his dogs fault but theirs. Their phone lines and web chats have cut me off as they are satisfied they have done all they can. If they continue with their hardline denial I am either going to hallucinate in false belief and imagine my parcel is before my very eyes or…. go on a mad rampage of insanity for repeatedly being told I am a liar….

It’s a parcel worth about £3.99 but I will not rest until justice is served.