How you write the password commands? for me d=64 work
my line looks like this:
a=x11 d=64 p=3.5 w=827 n=d326
and don´t forget, the diff must be power of 2
You pay $3.5 per kWh

I read their help and I think it's supposed to be expressed in $ per kWh. However I tried p=0.12 and the electricity cost in their statistics is crap...
No, they have not fix the Power calculation in the pool, so you must multiply with 10-20 i use 12, it´s buggy