There is a bug here. Iv noticed it quite a few version back and we are running 6.4.0 E14. its happening on all my systems even E26.

My reseller1 package looks like this;

Package Name admin_reseller1 1000 Quota Mega Bytes

My reseller package looks like this;

Package Name admin_reseller 20 Quota Mega Bytes

When i downgrade the account from admin_reseller1 to admin_reseller the quota doesnt change. It still shows 1000

It should be 20 and it shows in WHM at 1000.