No offense, your fucked ☹️
I had the same problem last year, they delivered a ring to one of my "neighbors", I've a good idea who but it's proving it, RM did a so called investigation, they knew where they delivered it to but the signature was moody & when challenged by RM they denied signing for it, & RM refused to tell me who it was, citing data protection, but they admitted that they fucked up so no issues me or seller claiming, still sucks though.