Please can verify your identity, is this an official response from the OEM BSL or is it some sort of perceived view of the local distributor GetOffGrid. Any which way I find this response as implausible and my interpretation is that it is a fob-off in order not to take accountability for a defective product
From the above statement my understanding is that if you attempt to configure the BMS via the RS232 port the battery will automatically become defective.