Hi, I am from Brazil, I have started using paycly from last 4 month, for IPTV and VPN, They have offered me an aggregated account. Which has high success ratio, Also they have option for the customer to pay by crypto. In all this, I can say that paycly is good provider for me. Yes they charges upfront fee which I dont like, may be if they stop charging advance, they may get more clients. Buts its upto them. I asked them if they can waive the advance fee which they denied, hence I was forced to pay.
As of now, I have no regret for paying advance for such provider.
I use their WHMCS for IPTV and wordpress plugin for VPN service which become cost saving for the integration, means what I paid to them in advance was saved for having ready made plugin from them. They themselves installed the plugin and performed the integration for me.