Upgrade

I’ve been contacted by ticket line to tell me I’ve bought the wrong tickets. I bought an earlybird motorhome settlers ticket and then in January bought two adult entry tickets. I should have bought adult settlers tickets. How can I upgrade my ordinary adult tickets to settlers tickets. There seems to be no way to do it on the website. I’m hoping Ticket line may contact me again to sort it out but if not how can I do it?

I was ablue to upgrade last year but do not leave it too late.

sure there was a post on here to say the upgrades would be on sale soon.

Phoned ticket line and they upgraded my tickets. To be fair they were very helpful. He also told me the motorhome tickets - settlers and others are like gold dust.