Send letter to the Companies House

I need a reliable UK-based assistant to mail two signed documents to Companies House, and a UK postal order. Tasks: print the supplied documents, purchase an envelope and a postal order for £110 payable to Companies House, obtain tracked postage, and send to the designated Companies House address. I will reimburse all expenses plus a $50 fee. UK postal order must be purchased within the UK. I cannot complete this due to relocation.

With Regards

Hana