Losing earned referrals balance after redeeming credits again

Sigh,

So this happened last year too, and it seems its STILL not been fixed, despite many people reporting the same problem

With it being a new year, I went to redeem some of my referral credits.

I chose the older lower £23 ones, I also recorded my phone screen while doing this as I thought if it happens I have something to show Meta support (II can see an option to add video on here but it wants me to give a URL and can't find any suitable site that I can upload it to that it will accept but I have put it onto my partners youtube here

https://youtube.com/shorts/r1B0HpJE_2k

In the recording, I started with a balance of £0.14

I then added 4x£23 referrals. I then go back to the balance, and it shows correctly at £92.14

I then go back to the referral page, and add another 2 random £23 referrals.

This SHOULD have taken my balance to £138.14 but it instead took it to 115.14

The credit is still marked as used, the referral page shows £138 as having been used.  This means that not only do I lose the £23 of credit I claimed, it has reduced my eligible allowable credit I can claim for the year by £23 too