Stolen SIM cards

A few months ago I had a tray of SIM cards stolen at a collector fair/bourse I attended in the UK. There were about 1200 Sims from mostly African countries - Sudan, South Sudan, Congo DR (Kinshasa), Congo (Brazzaville), Mozambique, Malawi, Swaziland (eSwatini), Namibia, Gambia etc. and Panama plus Suriname from South America.
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This has been reported to the police and an insurance claim is being processed.

Unfortunately I have been rather tardy in deleting the SIMs from my selling sites and as Sod's Law will have it they started to sell recently which has meant some disappointed customers. I think I have now deleted the vast majority of these SIMs from Delcampe but there may still be some which missed the pruning so ask my customers to contact me before buying these items so I can check they are in stock - though I do believe most still listed are available.

It would be appreciated if I could be informed if large quantities of SIMs from the countries listed are offered for sale anywhere. It will be easy for me to check if any being offered for sale are stolen or not from the codes/serial numbers. Most of these cards were purchased during my trips to Africa and are from 'difficult' countries so were mostly only available through myself.

Thanks in advance for any assistance given.