Many thanks for your patience, I am pleased to be able to continue assisting with your query now. First of all, I am sorry to hear about the issues you have experienced in your situation.
As a general background, constructive dismissal occurs when the following two elements are present:
- A serious breach of contract by the employer; and
- An acceptance of that breach by the employee, who resigns in response to it.
Whilst the alleged breach could be a breach of a specific contractual term, it is also common for a breach to occur when the implied term of trust and confidence has been broken. This is an implied term, of a contractual nature, which automatically exists in every employment relationship. It is there to ensure that the employer and employee treat each her fairly and reasonably. The breaches that could qualify could be a serious single one, or a series of less serious, but still relevant breaches over a period of time, which together could be treated as serious enough (usually culminating in the 'last straw' scenario).
The issue here is that the employer is able to make organisation changes and shuffle around reporting lines, etc. They do not have to stick with the same rigid structure indefinitely and have their hands tied if they need to make changes to the business in that respect. That is what could make a constructive dismissal claim risky here.
In any event, before constructive dismissal is pursued, it is strongly recommended that a formal grievance is raised in order to officially bring the concerns to the employer's attention and give them an opportunity to try and resolve them.
If resignation appears to be the only option going forward, it must be done in response to the alleged breach(es) (i.e. without unreasonable delay after they have occurred, so as not to give the impression that these breaches have been affirmed). Whilst not strictly required, a resignation would normally be with immediate effect and without serving any notice period. The reason is that the whole argument would be that things had become so bad that the employee cannot even continue working there a day longer. It is also advisable to resign in writing, stating the reasons for the resignation and that the whole situation is being treated as constructive dismissal.
It is also worth mentioning that there is a possible alternative solution to this, which could avoid the need for legal action. That is where the employer is approached on a 'without prejudice' basis (i.e. off the record and with protection against these discussions being brought up in future legal proceedings) to try and discuss the possibility of leaving under a settlement agreement. This can be done by asking for a meeting, or it can be done in writing, via letter or email. Under a settlement agreement the employee gets compensated for leaving the company with no fuss and in return promises not to make any claims against the employer in the future. It is essentially a clean break, where both parties move on without the need for going to the Employment Tribunal. However, it is an entirely voluntary process and the employer does not have to participate in such negotiations or agree to anything. There is nothing to lose by approaching this subject with the employer and testing the waters on this possibility - the worst outcome is they say no, whereas if successful it can mean being allowed to leave in accordance with any pre-agreed terms, such as with compensation and an agreed reference.