How stable are intermediaries of cellular operators in the Russian Federation?

Question

mobile connection

There are intermediaries of cellular operators who sell their own SIM cards, but cheaper and more profitable. For example, Megafon does not have a completely unlimited tariff, and I recently bought a full unlimited plan for 1000 rubles per month (actual speed = 50 Mbps).
But the question arose - how stable are these intermediaries? Yes, they buy capacities in bulk, so it is beneficial for operators, but what happens if they disappear? And how common are such intermediaries in Russia?
I heard that this is normal in the USA, but in the Russian Federation I don’t even know the corresponding term (what are they called in Russian?). Tell me, please.

Answer 1

and I recently bought a full unlimited for 1000 rubles per month (actual speed = 50 Mbps)

It 's not full unlimited. All these intermediaries simply buy traffic from upstream providers. For example, Iota, which sold full unlimited for a long time , actually sold 500 gigs per month for the snout. Your full unlimited definitely has a ceiling, after which you will either be mercilessly cut off the band to 16kbps, or they will write that the traffic has been exhausted. Just turn on the counter and start downloading torrents.

Answer 2

In any contract for the provision of mobile services, it is indicated that the operator has the right to change the tariff unilaterally == Intermediaries will disappear - they will change the tariff for you.