Hello, I'm new to the forum so I hope this is the right section.

Last night I could upgrade my AR 3.5 to 4.5 by paying 13,45 EUR. Right now it's 26,90 EUR - may I know what happened?
I couldn't upgrade last night duo internet problems, but as of now, i'm not going to upgrade if the fee is 27 euro.

thanks for your answers!