@Pandu Geddon, I think you should separate your findings based on the evidence you get.
for example:
4 Accounts Connected
1. wiz909
2. juba75
3. Sohag17
4. But909

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2 Accounts Connected
1. Badboy4200
2. Sarker61

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4 Accounts Connected
1. Sh fak
2. hk420
3. HK45 -1
4. suma75

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3 Accounts Connected
1. jokak75
2. moniapaora
3. Mstsimu

may appear relevant to your findings. because there is no proof of connection for 13 accounts as a whole.
and maybe you can report to the bounty manager to remove those accounts from the campaign
you get a good catch.
have a nice day.