Volt Speed Boost

Morning all, 

I am an exisiting O2 customer, and signed up to Virgin as a new customer on 22/7.

My O2 data has doubled and is showing as active, but my Virgin speed had not yet doubled. Is it abnormal that they activate asynchronously? I'm aware it can take up 14 days but that will be on the 5/8, so I accept I'm preempting this. 

Any advice is appreciated