Question for Bache Investments Ltd

My name is Jacqueline
I have sent divorce papers to my husband, he has received them both(the 2nd one I sent recorded delivery) the post office worker gave him the papers without obtaining a signature.
Are you able to serve the papers to him and obtain proof of this to enable me to proceed with a divorce?
He lives in clarendon denbigh.
If this is possible, what do I need to do and how much does your services cost?