RM0 upfront professional fee

Check whether your TNB account may contain recoverable billing discrepancies

Start with a free Stage A preliminary review. DZK screens factories, condominiums, commercial buildings and institutions before any confidential investigation or TNB submission.

Start Free Preliminary Review View recovery workflow

50% of Eligible RecoveryRecommended fee only after actual refund, cleared payment, posted credit or revised bill.

No fee for anomaly detectionA calculation, report, submission or TNB acknowledgement does not trigger the fee.

Confidential screeningPreliminary confidence is not a guarantee that every discrepancy is refundable.

Stage A preliminary screening

Step 1 of 4: customer and premise profile.

Live

Customer / company name TNB registered account holder Company registration number Contact person Email Telephone / WhatsApp Premise address

Property type Industry TNB account number Tariff category Supply voltage Number of TNB accounts Approximate monthly bill (RM) Smart meter status Solar / NEM status Building operating hours Tenant or submeter accounts, if applicable

Latest complete itemised TNB bill 1 Latest complete itemised TNB bill 2 Latest complete itemised TNB bill 3 Same-period bill from previous year, if available Recent credit note or revised bill, if any Short description of known billing concerns

Allow PDF, JPG and PNG. The system checks readability, account-number consistency and extracted bill fields where possible.

Preliminary eligibility result

Investigation potential / screening confidence

Risk band Data completeness Potential range

Proceed to Confidential Investigation

Screening

Profile, three recent bills, previous-year comparison if available, and customer-safe preliminary confidence.

Appointment

Appointment letter, performance-fee agreement, TNB authority letter and data consent.

Investigation

Document room, bill reconstruction, evidence matrix, recovery assessment and client approval.

Recovery

TNB dossier, correspondence tracking, recovery verification, fee ledger, invoice and closure archive.

Careful terminology matters

The system screens for investigation potential. Success only means realised recovery: a verified credit, cleared refund, offset or revised bill reducing liability.

Screening confidenceProbability that further investigation is worthwhile.

Potential discrepancyA billing concern that requires verification.

Recoverable candidateA supported finding suitable for proposed submission.

Eligible RecoveryActual verified benefit received by the client after reversals and exclusions.