GM does not allow to accumulate a single satosh.
How will GM issue a withdrawal if it spams 800 satoshi daily?
I don't have credits at all in my account.
Once you reach 0,002 BTC they will pay you out. This is minimum payout threshold on BTC.
You cannot find it in pending balance because it is only for credit card payment 1st month delay for security measures.
You have to calculate it yourself and this is not a rocket science. Once you reach 0,002 BTC they will pay it out.
You can switch your allocation to different coin which has lower payout threshold but this will reset your accumulated balance.
You will still have BTC accumulated but it will stay on the same level since you switched your allocation to different coin.
Please see below current minimum payout threshold in Genesis Mining:
BTC 0.002 (200 000 satoshi)
BTCD 0.001
CURE 0.2
DOGE 50
DASH 0.001
ETH 0.05
ETC 0.15
REP 0.1
LTC 0.001
NMC 1
PPC 0.01
START 0.1
UNO 0.001
XMR 0.4
ZEC 0.00005
ZET 1
As you see LTC might be good solution for you for example if you are impatient.