ISPCONFIG 2.2.0 dns problem

[andypl]

Hi

I have the problem in customers subdomains. When customers editing his subdomains in bind config domains adding new records that's ok but not deleting old editing records.
Next problem customers add new domains in his panel when deleting this domain and clicking on empty trash domain has been deleting in his panel but not deleting on system only admin cant delete domain on manage dns.