"I have not been able to subscribe, which has caused many payment issues. I kindly ask to consider using another platform
Sorry for the trouble. A few things to consider:
First, if you simply wish to support, I do have a Patreon. This is effectively just a tip jar however, and no news or content will be shared there. If you wish to "purchase" the game by supporting for a month, or get early access when the game is complete, SubscribeStar is still required.
Second, due to increasing censorship from payment processors, SubscribeStar is the only available platform I can use. If I tried to fully use Patreon, my account would rapidly be shut down, or I would be forced to heavily censor my work. I am not aware of any serious competitors to these two platforms. Various Japanese platforms exist, but these are largely inaccessible to anyone outside of Japan, and require a different kind of censorship. If you don't mind, what is your specific circumstance that leads to you being unable to use SubscribeStar? Where are you located, generally? Have you tried SubscribeStar's new wallet feature, which opens up many additional payment options?