Existing Adwords Account Voucher Codes?

Hi guys, is it possible to get vouchers for existing adwords accounts in the UK?
I use google shopping and it'll be a major hassle setting up a new account and linking it into the merchant centre again etc
I used one they mailed me last month and I wanted to use another one but noticed most sellers etc only do them for new accounts... any ideas?

i have been looking for something ike that myself... in past there used to be such kinda vouchers but i do not think anymore

I dont think vouchers exist for current users, as they are designed to introduce new advertisers to the platform.