callback problem
ok the problem:
client operates a e-com website that uses a 3rd partp payment processor,
so customer checkouts- gets transferred to 3rd party payment page- where s/he enters cc details- psp does it what it has to cc and then callbacks a confirmation page hosting on our server- the problem is that the callback doesnt always happen- which means it 'messes up her stock control system' and means paid orders are shown as 'unpaid' .
i say sure, it must be 3rd party payment processor- so having spoke to the psp- they blame the server- saying it must be unavailable at the time when the callback is coming through?
Please help.
client is one of the largest independent e-retailers of kitchen white goods so handle a few ( lots of ) orders. ( they going to go to MPI integration but thats pencilled in April)
i really dont want to loose them as clients- need to get paid more not less!
