Neighboring addresses, inside the same block, share a reputation. A site that blocks the block blocks all hundred at once, and having a hundred protected nothing.
What to watch
Look at the first three numbers of the IP. If they are the same across the whole list, everything sits in the same block. Spreading across different blocks cuts the damage when one block is blocked.
Replacement delivers another address from the same country group, but it does not promise another block. If the block is the problem, say so in the ticket.