Slimming World Log on

Hi there
i received a replacement card at class this week (forgot to take card to class ), anyway i logged onto with my original details and changed the email add as i thought i would need to use it for the replacement card, tried to log on using replacement card details (reg as new card) and advises already registered! will be a near bald soon - can anyone advise the correct sequence - i cannot see anything in FAQ in SW website.
Thank you in advance - yvonne :sigh:

There's a different pin number with each card. You'll have to ask for it at your next class. Other than that I've no idea, sorry.

for some reason i could not log on with mine after getting my card and pin and i knew i had everything right. however, i got a new card the following week and was able to log on with the new card and new pin number