It doesn't take hours to gain 5000 PD, I've been able to do it
rather fast on a very slow ipad. This is online currency, its not
like real money, and it doesn't hold real value. Interacting isn't
the only way to get PD, you can auction off some pokemon, sell
items in the item shop, rumble, etc. There are more expensive items
on PH I'd be more worried about than the odd incense, like the
pokeradar and battery. Accidentally breaking your pokeradar is a
bigger problem than losing an odd incense because it actually will
take you a while to gain back what you lost from the pokeradar.
So still, no support, sorry.
Breathe