In order to get this offer, download the account and set up a rewards account.
If you top up with paypal and activate recurring top-up (this can be de-activated straight after), then you get an extra £5 credit. The minimum top-up is £5 so this means you get £10 worth of credit for £5.
If you top up £10, you get a free breakfast (food and a hot drink I think). This used to be £20 and I don't know if this is a limited offer. So, if you top up £10, you get £15 credit and a free breakfast. This is only available to the first 10,000 customers who do it, but I signed up way back in May and the offer is still running (I signed up again on work phone a couple of days ago)
Also, if you register you should be able to get a free Festive bake. If this isn't on your account within 24 hours e-mail [email protected]
and they should be able to sort out (I am not sure how long this part of the deal is running for).
Also, every now and again rewards come up. So far this year I have had soup, hot dog and festive bake. I paid for a top-up but I have been assured that even if you don't top up, you still get these rewards.