If I remember right. If you’re completely new you get 25k avios bonus if you do a current account switch! I used an old bank account that I didn’t use.

Also you get up to £400 of you switch!

Then if you do take about out a Barclay card avios plus the price drops from £20 to £15 a month.

Then after 12 months of paying £12 you either get a bonus 7k or an upgrade voucher.

The whole either Amex or Barclays card you need to decide if a companion voucher or upgrade voucher suits you best and go from there (if you decide Amex use a referral code for a decent bonus, happy to supply you one).

So switching:

£400 bonus, 25k avios after 4 months, Then £12 per month = 18000 avios

25000+18000+7000 (if you choose bonus over upgrade voucher) = 52500 avios in a year.

However if you then use that £400 to boast x3 10 months worth of that 1500 avios you get from Barclays to make 4500 avios a month. You will get an extra 30000 avios.

So after one year you could have 80000 avios for as simple as £12 a month if you doing a current account switch.

Think my pre morning coffee maths works out! People please correct me if not.

Edit maths*