The Social Services and Well-being (Wales) Act 2014 came into force in 2016. It is not an easy read and there is Statutory Guidance/Codes of Practice to explain (to us mortals and the powers to be) what is meant and the intention of the legislation.
At the beginning it clearly states.........
"In this code a requirement is expressed as “must” or “must not”. Guidance, where local authorities have discretion, is expressed as “may” or “should/should not”.
Annexe C page 48 of the link below mentions many a "must"........
"4.2. A person must not be asked to pay an additional cost towards the cost of providing the type of accommodation in a care home to meet their assessed needs. To ensure they have a genuine choice over this a local authority must have more than one option available for a person to choose from within its standard amount for residential care. Where no suitable accommodation is available at its standard amount to meet a person’s assessed needs in full, the local authority must arrange a placement in a suitable more expensive setting and adjust its funding accordingly to ensure that needs are met. In such circumstances, the local authority must not ask the person being placed or a third party to pay the additional cost. Only where a person has chosen a care home that is genuinely more expensive than a local authority would usually pay for a care home placement of that type or, where a person has requested services or facilities that do not form part of their assessed needs, can an additional cost be sought."
Hope that was in time for your phone call.