i have a wisper 706 alpino, purchased in april this year, and to date it has blown 4 lower fitted battery fuses,i have been supplied with 2 new fuse holders from e-bikes direct, but the problem is this, the fuse holder fitted on the battery has a plastic screw end fitted with a metal holder and the screw fitting is on the end of the metal holder i;e well inside the battery, the replacement ones i have been sent have the screw thread on the plastic part below the metal holder, has anyone else had this problem