I just got a PM from a Waller rep who posts here, which reminded me of this thread.
(I'd posted above about my Waller range bag that broke its zipper and one of its Fastex buckles after maybe six years of intermittent use, and no abuse.)
When I later inquired, a somewhat taciturn Waller customer service person told me to send the bag to them, which I did, and they did repair the damage, and I recently received the bag back with a new zipper sewn in and a new buckle/nylon strap, so they DO stand behind their products, even though their website makes no representation about "lifetime guarantees".
I should have posted a followup note, but I'd forgotten about this thread!