There is a new function available in their app which does similar (i.e allow for proof of posting from a postbox). They've also been pushing collection by postman too.
It saves a trip to the post office which is a hassle which would be a cost for the Royal Mail (which was privatised as a separate company to the Post Office).
It saves a trip to the post office which is a hassle which would be a cost for the Royal Mail (which was privatised as a separate company to the Post Office).