Why can you no longer use a TowersStreet account to sign in?
Maintaining the link between the two site accounts also caused some massive issues for some users who experienced issues with lost profiles and ultimately caused some users to give up using the service. This was highlighted in our recent systems review, so combined with feedback we changed it to be independent once again.
Naturally TowersStreet and ridecount remain 'siblings' via the mummy and daddy parent 'parkexpert'.