Is charging $150 for moving Openet TP box within existing cable length valid?

during my reno for my resale unit, the electrician hired by my contractor took out the Openet TP box and left it hanging in midair with the cable coiled up throughout the renovation period of more than a mth. Remounted it back to a position I requested which is within cable length on the same wall but above original position. Initially, electrician day no cost, later contractor told me this is still considered a " relocation" of TP box,  charges still apply as he is liable to Openet if any cable inside the box is damaged. How I know if there r any damages? Will only check when I sign up with service provider then I know right? Will I end up paying both contractor n Openet when they later found damages in cable or TP box?

Can I gather some advice on how I should handle this? Pay or not pay?