I have recently re-joined VM and I had a previous upload speed of 5Mbits. This was on a 100Mbit download package. I re-joined on the same package and it's nice to see that VM have now increased the upload speed to 10Mbits.
Hmm...but if I put a 4G SIM card in my router (from either 3 or EE) I can get uploads speeds of around 20Mbits (between 30 and 40Mbits download). So basically I can get better upload performance if I use 4G.
Come on VM, let's get real here. Increase those upload speeds because 5G is coming and one day I will be off.