Denti, may I suggest you re-read your manual carefully again. It's plain simple, for CAT III A&B with DH approach two RVR reading are mandatory TDZ & MID. In case auto roll out is performed MID RVR can be 75 m whereas TDZ must be 200 m in order to acquire visual cues for CAT III A 3 lights and for CAT III B 1 light. CAT III B with NO DH no need to see anything thus only TDZ RVR 75 is required which can be substituted by MID, rollout RVR has NO effect whatsoever. Have a look at the table 6a for failed or downgraded equipment for AWO. EU OPS.
For CAT IIIB operations with no DH, an operator shall ensure that, for aeroplanes authorised to conduct no DH operations with the lowest RVR limitations, the following applies in addition to the content of Table 6a:
RVR At least one RVR value must be available at the aerodrome.
P.S. once again the thread is about the approach BAN it's applicable as per country's regulation and OPS specs of the operator. EU OPS approach ban is applicable to any approach.