How do I send letters to the USA using Click and Drop please? The option do to this was removed on Tuesday.

In his email dated 28th August your colleague Micheal Irwin (Director of Export) says this "If you only send personal correspondence to the USA, you are not affected by these changes“ So this is the reason for my query on letters.

I’ve had product codes added to my account for parcels but I need to send letters to the USA. I’ve been using product code DP3 previously for sending letters to the USA.