Nokia 6820 / 6820i

I need a twin sim capability for my 6820, but all I can come up with on a web search is one of those where you have to cut down your exisiting 2 sim cards.

I don't feel comfortable with this 😳 - especially as one of my sim cards belongs to my employer!

Does anyone know of a company that sells another option for twin sims that is compatible with the 6820?

😁 Thanks in advance guys!

Jason