Probably for the same reason that I don't answer customer emails at night. BECAUSE I AM NOT AT WORK.
This sort of thing annoys the hell out of me, and yes, I am venting. You've had your vent so you will let me have mine.
People work certain hours. Because they own a computer at home thaqt they use for recreation
does NOT mean they should work 24/7.
I get sick to the back teeth of whinging selfish prats sending emails of complaint about me to my company, simply because they had to wait until office hours to receive a reply. Because I run the
eBay store for the company I work for AND their website (not Parkers BTW!), that apparently means that I must be on call should someone decide to ask a question at 4am.
WHY THE HELL SHOULD an employee of the company answer work emails in their OWN LEISURE TIME? And what sort of peanut writes letters of complaint to the company directors about me, because my one-person department isn't open 24/7/365? Probably people like you who assume that people should be at their back and call all yours. It happens, quite regularly. They go to the bottom of the queue.
Now, on to your issue, it sounds to me like your card and PayPal (as a payment processor / PayPal web payments pro) aren't "getting along". Unfortunately there is little a company using PayPal as the card processor can do, other than lift all fraud checks and leave themselves open to chargebacks. Been there. Unfortunately the retailer may be as annoyed at times with PayPal as you. But if PayPal have taken money and not deposited it into Parkers account, then PayPal WILL NOT EVEN TALK TO PARKERS about it so there will be nothing they can do, hence suggesting you talk to Parkers. Again, been there.