I'm not a lawyer, but I can offer some general advice that may be helpful in this situation. It's important to consult with a legal professional who specializes in Spanish law to get accurate and specific advice for your case.
Review the contract: Carefully review the contract you had with the builder to determine the scope of work that was agreed upon and the payment terms. If the additional items were not included in the original contract or invoice, it may be easier to dispute them.
Document everything: Collect all relevant documentation, including the original contract, invoices, and any communication with the builder. Keep records of any issues or complaints you had, especially regarding the unsafe electrics and the subsequent hiring of another electrician.
Seek legal advice: Consult with a lawyer in Spain who has expertise in construction law or contract disputes. They can assess the specifics of your case and provide guidance on how to proceed.
Negotiate or mediate: If possible, try to resolve the dispute through negotiation or mediation before resorting to legal action. This may involve communicating with the builder and explaining your concerns, highlighting the discrepancies in the invoices, and seeking a fair resolution.
Consider filing a complaint: If the builder refuses to cooperate or if you believe you've been a victim of fraudulent or unethical practices, you may need to consider filing a complaint with the appropriate authorities in Spain. Your lawyer can guide you on the necessary steps and procedures.
Remember, the laws and regulations regarding construction contracts and disputes can vary between countries, so it's crucial to consult with a legal professional familiar with the laws in Spain to ensure you receive accurate advice.
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