We're all aware of the hike in prices/tariffs, but I'm a bit confused.

Our current Gas/electric tariff ends on the 21st. According to Martin Lewis/MSE, the 'price cap' is cheaper than any deal available, and says 'do nothing'.

Presumably our supplier SSE will automatically put us on this after the 21st ? The letter I've had from them says they'll automatically switch us on to their standard tariff[s] if we do nothing. Am I right then, in presuming that as per MSE, this will be 'price-capped', and hence the 'best tariff available ?

Ta.