Cheap airport lounge access

I've seen many people try to blag access to lounges. Never seen it work. I suppose the exception is where somebody has pitched up and there is a more minor irregularity - eg a FF card just expired, or on one occasion a group of 5 where there were two gold FF cards which allowed a single extra guest (ie 2x2=4) and a sliver which allowed no access.

For a long time I had the "top" status with an airline which allowed me to take in two guests and this was regardless of flights being taken. I always travelled alone so rarely needed this. But if I saw far flung brits I'd always proactively offer to take them in. I remember an elderly couple who said it had made their trip - this was a lounge that had proper waiter service and a spa.

So I'd suggest that if you spot a lone traveller with a FF card (perhaps at check-in) then be cheeky. Ask them if they have and spare lounge access and if they will get you in. (Eg gold star alliance allows you to invite one extra person in.)

Has anyone used the My Lounge at Gatwick North? Just seen its £13.50 so was thinking even if its rubbish I would probably spend that on a few drinks before I fly.

It was on the MSE Airport Lounge guide page but the offer had to be booked by the 24th July for use by the end of the year.

I booked access to the lounge at Birmingham airport via the MSE code. The confirmation email won't show in full either on my laptop or on my computer at work I get some content along with the message "This sender failed our fraud detection checks and may not be who they appear to be".

There are two QR codes for the express lane (presumably one for each person booked for) but when I try to print the email the QR codes don't print.

Do I need to print the codes or can I show them on a device? Do these codes grant access to the lounge or is there something else which isn't showing on the email that I need?

Sorry if this seems a stupid question!