I used the original solution you provided as this worked great, just saved the document as a normal word document before sending out, which works fine as the services to be provided will for now be predetermined before being sent out.

The only issue I'm now facing is that i couldn't change the code to allow for multiple selections. There are no conditions as to what service can be provided, any mix is permitted, how can I adjust or add to the original solution you provided so it can allow multiple selections and perform the correct addition/subtractions?

thanks again for your help