Gsp should I add stamps to gsp label

[cdc1629]

I am sending a book Gsp label shows payment for letter only.  Should I add stamps for extra payment.?

[cdc1629]

What

[cdc1629]

That is the question.what is the answer. Yes. Or. No.?

[cdc1629]

Do I need to add stamps?

[pixiesen2012]

no do not add stamps, void the label and buy one the correct size

[tobiasd4]

You must still pay tracked postage to send to GSP centre, also make sure you include the reference supplied on address.