upon the off fortuitous that you commit an error in your event towards a client and you dependence to let […]

on the off unplanned that you commit an mistake in your situation towards a client and you obsession to let […]

on the off inadvertent that you commit an mistake in your matter towards a client and you infatuation to permit […]

on the off chance that you commit an error in your concern towards a client and you infatuation to come […]