Scratches/oxidation on Charge 5 side metal bars

[carlosaranha]

Hi! After only 4 months of use my Charge 5 shows serious physical damage on its side metal frames/bars, with no reason for it to have happened. The rest of the tracker is in perfect state, not a single minimal scratch is seen on either the glass screen or the wristband. 

I live in cold weather thus am always dressing long-sleeves; i.e. my tracker is always covered/protected by soft fabric layers with no buttons. In other words, there is no history of scratching/hitting hard surfaces nor anything that could be rubbing and damaging it.

With that said, I'm not sure if these are scratches, or oxidation – please see the pictures below. But again: there is no reason for it to have happened. And I can already feel both ECG and EDA readings starting to compromise (tracker facing difficulties to read it even with my fingers on it).

Any similar cases? Any comments that could help understand/solve it?

Thank you!

Carlos

[Odyssey13]

here are the support contacts I've gleaned over the years on the forums.

when there is someone available, chat is an option. Phone or Twitter works well, too.

https://myhelp.fitbit.com/s/support?language=en_US 

Support is limited by the number of representatives available at a given time and the hours of operation. Chat lines are open when they have live help.
USA: call (877) 623-4997
UK: call 0800 069 8505
INDIA: call 000 800 050 1057
IRELAND: call 01 691 7502 (country prefix: +353)
Other contact options:

USA: click

Canada: click for options