North Bihar Power Distribution Company [NBPDCL] — Recharge Money not reflecting

My Smart meter balance for Consumer number:[protected] showed -384.11 rs so i recharged with rs 385 using Sugam App and it reflected in my account as a recharge token. when i clicked on "use all tokens" it disappeared and showed "error duplicate token" and my balance still remained -291 rs. Then i recharged with rs 300 using nbpdcl website and it reflected in my account making my balance rs 8. Then i recharged again with 500 rs using nbpdcl website but it's showing rs 7.49 in my account instead of 500rs. What happened to my 385rs token and the 500rs recharge money