I am not thinking that Miracle Tele is Scam. The reasons:

1. Some peoples still confirm that they got their payments from stak
2. MT sim cards is active

My vision of situation and explantation, why admin left the group:

I think that team make a panic because want to motivate hunters withdraw their tokens from website (it's mean that they will not receive payments anymore). External deposit is closed - thats why that who bought tokens from fork delta can't get a huge profit from stak anymore. So, it's only making panic to clean the holders.