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But in summary, no, Northampton is the central clearing centre, the case will be transferred to the court you specified on your N180 in due course, when it is please show the letter showing the hearing date, the date by which the claimant has to pay the court fee, and the date by which documents need to be submitted to the court.
Do not talk to DCB Legal, block their number or hang up on them. Any appropriate communication needs to be in writing.
As you will see from your forum search, DCB Legal usually discontinues before having to pay the fee.