Google has favoured indexed the https website as it has a secure certificate used for the payment gateway. Unfortunately this causes an issue with the account login process which is setting a session on http.
My options as I see are:
1. Use rewrite (lls) to redirect https to http
2. Reconfigure the site to use https and redirect http to https
My worries are with 1 are the adverse affects with ranking but this is the easiest and quickest fix. 2. still uses a redirect but maybe is the correct route?
TIA
Andrew