Extremly slow Internet speed

Hello,

Since the last few days, my internet speeds are extremely slow. download speeds of 0.6 to 1mbps and upload speeds of 0.5 to 1Mbps. My subscription with O2 is flex Max so normally, so normally one would expect to get some decent speeds. I can understand that there is contention on the bandwidth on the cell towers, possible congestion on the fiber etc. However, one would expect that for your customers subscribing to your highest subscription, there would be some prioritization of traffic. Otherwise, what is the purpose of having such an expensive subscription.

I understand that I will not get the advertised bandwidth, but what I see currently is simply absurd!

I did check O2 live check site and it shows that the network is functioning fine, with no works in progress. I also tested with 4G + 5G and 4G LTE only on my modem, but the results are the same, so one would assume that it is due to congestion on the cell tower or the fiber. The issue is not on my end (No signal issue, No change to my modem, etc.) nor is it a problem with my modem. In the past the speed used to be around 14 - 15 Mbps (download), I did not comment (even though for the price I pay, it should be way higher!!!). The current speed is simply not acceptable.

Is the speed being limited by O2 for some reason (even though all the bills are paid in full and on time)?

What can you do to resolve this issue? Or is O2 indirectly telling me to look for an alternate provider??

Thanks in advance for a quick answer

Regards,

Harl