Let's see what VM have to say. Since the original "fix date" was 11 Feb, it's probable that's still showing on the system (as far as I can tell, CS and forum staff can't see any "history" of dates, not whether there's any work actually programmed). I suspect that come Friday, the fix date will mysteriously have advanced a couple of weeks or a month.
In some areas VM do indeed undertake work to rejig the local networks to balance loads and eliminate over-utilisation. But sometimes/often that's either not possible, or judged uneconomic if there's a need to spend money on more equipment. And sadly VM have a major problem with being transparent about this, so there's no way of knowing if a fix date is actually backed by an actual plan of action and programme of works.
In all honesty your best course of action would have been to have bailed out in your cooling off period, that's now gone, so you either bank on the problem being Covid related, and sit it out, hoping it resolves in the next few months. Or you can raise a complaint asking to be released from contract without penalty due to the over-utilisation.
All of which will be irrelevant if VM fix this by Thursday........
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