Several Smart Valves with the same display issues

Dear Netatmo Team, The paper display of 6pcs. x Smart valves become unreadable, after an year usage. One of the Smart relay can't be supplied with his plug or with the USB cable. Here is the Smart valves serial numbers: 

1. o05c1cc

2. o13d910

3. o182fe3

4. o146c2b

5. o18a1ed

6. o15115e

7. Netatmo relay - ga82548 / NTH01 / FCC ID: N3A-TPG02

What to do next? Can you change the display or to send me the spare ones?

Thank you in advance for your promt replay! Regards, Andrey Yovchev