I purchased this a few weeks ago and battled with the 'Failed because of invalid data input' error.
I phoned up HSBC and they said that it needed to use https.
So I got myself a SSL certificate and it works perfectly now, although I still hate the HSBC side interface. So old -_-
I had a problem with my SEO URL's. I built a nice shop, started adding SEO's, turned it on and renamed the htaccess. It kept coming up as a 404 when I tried it out. I got it in my head that it was a server problem, even though rewrite was enabled, so I built another web server, built the opencart sh...