MOT Tax conundrum

[fish]

What do you think?

I need to tax the Landrover at the end of June, I have all the documentation.

Now the problem, am I right in saying you can only tax a vehicle upto two weeks prior to the end of the month....but I'm on honeymoon. I actually get back two days before the end of the month but I am unable to get to the postoffice in that time. If I leave it till after the 1st July I get fined so how am I as a sensible citizen supposed to get it taxed.

Any thoughts