Need suggestions for collecting rent online

[John Smith]

I've searched biggerpockets and i HAVE found some suggested online payment options but they all come with a suite of services i dont need. Im looking for something that ONLY allows my tenants to make online payments for rent, nothing else.  I already have a property management softtware i use to manually collect rents.  I just dont like the merchant that comes with my software.  I need something as simple as using paypal.  The reasons i dont wanna do paypal is the fact that the tenant can pay whatever they want and they could also dispute a paypal charge.