If your department truly needs them then put together a reason why and go to your ETL with the information.
For example: At my store Consumables gets 208 hours/week, that’s it, and it’s every week. On the weeks they have massive transition the FBTL prints off the workload and partners with the ETLGMFB and ETLHR to explain why they need the extra hours. They go in with their truck schedules, price change forecasts, and POG workload and explains they’ll need support in the form of hours and possibly TMs. Doing this they have never been denied what they need.
Going in with a realistic game plan and being able to support your need will go a long way, much farther than simply tryna pull a sneaky. Put together your needs, listen to their counteroffer, and negotiate for your needs. Don’t ask for more than you need, or more often than you need it.