tips
if u still no get any sms or email for free speed upgrade
1.login tm page with ur account
2.check service if there mark is new speed upgrade
3.reboot ur modem 10minit try it

i no get any sms and email from tm
but i login my account check is mark new speed 50Mbps (old 30Mbps)
so u just reboot your modem u will get free speed upgrade
i try it i get it hope can help for all