Dont receive what you pay for

I have been battling with our internet connection and have to contact in every time to fix the speed. We pay for 100mb down and 100mb up but barely reaching 30 down and 30 up. But still Vox charges the FULL amount for the usage. VOX could you please send me a detailed report of speeds since we activated the package, refund the difference and keep the speed steady. We pay a lot for the package and cannot carry on like this. It seems that Vox is dropping speeds but still getting paid the full amount for packages every month. And the other question is how many people are you doing this to? URGENTLY CONTACT ME *** and i will provide you with proof of our speeds i have conducted. But i also require a full report from your side aswell. Delays and limited speeds are costing me money!!!!!!!!!